Patents by Inventor Christopher Fred Keimel

Christopher Fred Keimel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170066645
    Abstract: A system and method for a micro-electrical-mechanical system (MEMS) device including a substrate and a free-standing and suspended electroplated metal MEMS structure formed on the substrate. The free-standing and suspended electroplated metal MEMS structure includes a metal mechanical element mechanically coupled to the substrate and a seed layer mechanically coupled to and in electrical communication with the mechanical element, the seed layer comprising at least one of a refractory metal and a refractory metal alloy, wherein a thickness of the mechanical element is substantially greater than a thickness of the seed layer such that the mechanical and electrical properties of the free-standing and suspended electroplated metal MEMS structure are defined by the material properties of the mechanical element.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 9, 2017
    Inventors: Joleyn Eileen Brewer, Christopher Fred Keimel, Marco Francesco Aimi, Andrew Minnick, Renner Stephen Ruffalo
  • Publication number: 20170067742
    Abstract: A gyroscope includes at least one anchor and a plurality of gyroscope spring elements coupled to the at least one anchor. The gyroscope also includes a plurality of concentric rings coupled to the plurality of gyroscope spring elements and configured to encircle the plurality of gyroscope spring elements. The gyroscope further includes an excitation/detection/tuning unit electrostatically coupled to the plurality of concentric rings.
    Type: Application
    Filed: November 4, 2015
    Publication date: March 9, 2017
    Inventors: Sergey Alexandrovich Zotov, Christopher Fred Keimel, Todd Frederick Miller, Yizhen Lin
  • Publication number: 20170062889
    Abstract: A radio frequency (RF) microelectromechanical system (MEMS) package includes a first mounting substrate, a signal line formed on a top surface of the first mounting substrate, the signal line comprising a MEMS device selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and a ground assembly coupled to the first mounting substrate. The ground assembly includes a second mounting substrate, a ground plane formed on a bottom surface of the second mounting substrate, and at least one electrical interconnect extending through a thickness of the second mounting substrate to contact the ground plane, wherein the ground plane is spaced apart from the signal line.
    Type: Application
    Filed: August 28, 2015
    Publication date: March 2, 2017
    Inventors: Yongjae Lee, Joseph Alfred Iannotti, Christopher Fred Keimel, Christopher James Kapusta
  • Publication number: 20170062890
    Abstract: A RF MEMS package includes a MEMS die assembly having a signal line formed on a top surface of a first mounting substrate, the signal line comprising a MEMS device selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and two pairs of ground pads formed on the top surface of the first mounting substrate adjacent respective portions of the signal line. The pairs of ground pads are positioned adjacent respective sides of the MEMS device. A ground assembly is electrically coupled to the pairs of ground pads and includes a second mounting substrate and a ground region formed on a surface of the second mounting substrate. The ground region faces the top surface of the first mounting substrate and is electrically coupled to the pairs of ground pads. A cavity is formed between the ground region and the signal line.
    Type: Application
    Filed: August 28, 2015
    Publication date: March 2, 2017
    Inventors: Yongjae Lee, Joseph Alfred Iannotti, Christopher Fred Keimel, Christopher James Kapusta
  • Patent number: 9570783
    Abstract: A RF MEMS package includes a MEMS die assembly having a signal line formed on a top surface of a first mounting substrate, the signal line comprising a MEMS device selectively electrically coupling a first portion of the signal line to a second portion of the signal line, and two pairs of ground pads formed on the top surface of the first mounting substrate adjacent respective portions of the signal line. The pairs of ground pads are positioned adjacent respective sides of the MEMS device. A ground assembly is electrically coupled to the pairs of ground pads and includes a second mounting substrate and a ground region formed on a surface of the second mounting substrate. The ground region faces the top surface of the first mounting substrate and is electrically coupled to the pairs of ground pads. A cavity is formed between the ground region and the signal line.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: February 14, 2017
    Assignee: General Electric Company
    Inventors: Yongjae Lee, Joseph Alfred Iannotti, Christopher Fred Keimel, Christopher James Kapusta
  • Patent number: 9465160
    Abstract: A method of manufacturing a layered material stack that includes a plasmonic interface between a plasmonic material and optical waveguide material is disclosed. The method includes providing a substrate layer, disposing a layer of plasmonic material on the substrate layer, depositing a metal constituent of an optical waveguide material directly onto the layer of plasmonic material, and anodizing the metal constituent of the optical waveguide material to form an optically transparent oxide of the metal constituent configured to couple light into the layer of plasmonic material, with the optically transparent oxide of the metal constituent forming an optical waveguide structure.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: October 11, 2016
    Assignee: General Electric Company
    Inventors: Christopher Fred Keimel, John Brian Hewgley, Juan Jose Becerra
  • Publication number: 20160220158
    Abstract: An array of emitters includes a device substrate having first and second sides, a thermally and electrically conductive layer disposed on the first side of the device substrate, and an interconnect layer disposed on a first plurality of portions of the second side of the device substrate. The array of the emitters further includes a plurality of emitters disposed in a second plurality of portions of the device substrate, where the plurality of emitters is electrically coupled to the thermally and electrically conductive layer. Also, the array of the emitters includes a plurality of wirebond contacts configured to electrically couple a portion of the interconnect layer to a corresponding emitter of the plurality of emitters, and a plurality of encapsulations, where one or more encapsulations of the plurality of encapsulations are disposed on at least a portion of a corresponding wirebond contact of the plurality of wirebond contacts.
    Type: Application
    Filed: April 7, 2016
    Publication date: August 4, 2016
    Inventors: Jason Harris Karp, Christopher James Kapusta, Paul Jeffrey Gillespie, Christopher Fred Keimel, Jeffrey Michael Ashe, James Enrico Sabatini
  • Publication number: 20160164161
    Abstract: An ohmic RF MEMS relay includes a substrate with a capacitive coupling, Csub; two actuating elements electrically coupled in series, so as to define a channel, wherein the actuating elements are configured to be independently actuated or simultaneously operated. The actuating elements have their own capacitive coupling, Cgap; a midpoint on the channel is in electrical communication with the actuating elements; and an anchor mechanically coupled to the substrate and supporting at least one of the actuating elements. Also, an ohmic RF MEMS relay that includes an input port; a plurality of first MEMS switches that make up a first switching group in electrical communication with the input port, thereby defining a plurality of channels each leading from each of the MEMS switches; and at least one outlet port along each of the channels distal from the first switching group and in electrical communication with the input port.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 9, 2016
    Inventors: Yongjae Lee, Marco Francesco Aimi, Glenn Scott Claydon, Christopher Fred Keimel
  • Patent number: 9362608
    Abstract: An ohmic RF MEMS relay includes a substrate with a capacitive coupling, Csub; two actuating elements electrically coupled in series, so as to define a channel, wherein the actuating elements are configured to be independently actuated or simultaneously operated. The actuating elements have their own capacitive coupling, Cgap; a midpoint on the channel is in electrical communication with the actuating elements; and an anchor mechanically coupled to the substrate and supporting at least one of the actuating elements. Also, an ohmic RF MEMS relay that includes an input port; a plurality of first MEMS switches that make up a first switching group in electrical communication with the input port, thereby defining a plurality of channels each leading from each of the MEMS switches; and at least one outlet port along each of the channels distal from the first switching group and in electrical communication with the input port.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: June 7, 2016
    Assignee: General Electric Company
    Inventors: Yongjae Lee, Marco Francesco Aimi, Glenn Scott Claydon, Christopher Fred Keimel
  • Patent number: 9188113
    Abstract: A method of actuating a valve, comprises operatively coupling the valve with an electroosmotic pump; flowing a fluid through the electroosmotic pump; and generating a fluidic pressure of at least 0.75 PSI to actuate the valve, wherein the electroosmotic pump comprises one or more thin, porous, positive electroosmotic membranes and one or more thin porous, negative electroosmotic membranes; a plurality of electrodes comprising cathodes and anodes, and a power source; wherein each of the positive and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on the other side of the membrane and wherein at least one of the cathodes or anodes is disposed between a positive and a negative electroosmotic membrane.
    Type: Grant
    Filed: December 7, 2013
    Date of Patent: November 17, 2015
    Assignee: General Electric Company
    Inventors: Christopher Michael Puleo, Christopher Fred Keimel, Craig Patrick Galligan
  • Patent number: 9103331
    Abstract: An electroosmotic pump comprises a plurality of membranes comprising one or more positive electroosmotic membranes and one or more negative electroosmotic membranes, a plurality of electrodes comprising cathodes and anodes, and a power source. Each of the positive electroosmotic membranes and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on other side of the membrane. At least one of the cathodes or anodes is disposed between a positive electroosmotic membrane and negative electroosmotic membrane.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: August 11, 2015
    Assignee: General Electric Company
    Inventors: Christopher Michael Puleo, Christopher Fred Keimel, Xiaohui Chen, Ralf Lenigk, Craig Patrick Galligan, Todd Frederick Miller
  • Publication number: 20150133753
    Abstract: An array of emitters includes a device substrate having first and second sides, a thermally and electrically conductive layer disposed on the first side of the device substrate, and an interconnect layer disposed on a first plurality of portions of the second side of the device substrate. The array of the emitters further includes a plurality of emitters disposed in a second plurality of portions of the device substrate, where the plurality of emitters is electrically coupled to the thermally and electrically conductive layer. Also, the array of the emitters includes a plurality of wirebond contacts configured to electrically couple a portion of the interconnect layer to a corresponding emitter of the plurality of emitters, and a plurality of encapsulations, where one or more encapsulations of the plurality of encapsulations are disposed on at least a portion of a corresponding wirebond contact of the plurality of wirebond contacts.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: General Electric Company
    Inventors: Jason Harris Karp, Christopher James Kapusta, Paul Jeffrey Gillespie, Christopher Fred Keimel, Jeffrey Michael Ashe, James Enrico Sabatini
  • Publication number: 20150055924
    Abstract: A method of manufacturing a layered material stack that includes a plasmonic interface between a plasmonic material and optical waveguide material is disclosed. The method includes providing a substrate layer, disposing a layer of plasmonic material on the substrate layer, depositing a metal constituent of an optical waveguide material directly onto the layer of plasmonic material, and anodizing the metal constituent of the optical waveguide material to form an optically transparent oxide of the metal constituent configured to couple light into the layer of plasmonic material, with the optically transparent oxide of the metal constituent forming an optical waveguide structure.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 26, 2015
    Applicant: General Electric Company
    Inventors: Christopher Fred Keimel, John Brian Hewgley, Juan Jose Becerra
  • Patent number: 8802475
    Abstract: A method of fabricating a microelectronic device structure including increased thermal dissipation capabilities. The structure including a three-dimensional (3D) integrated chip assembly that is flip chip bonded to a substrate. The chip assembly including a device substrate including an active device disposed thereon. A cap layer is physically bonded to the device substrate to at least partially define a hermetic seal about the active device. The microelectronic device structure provides a plurality of heat dissipation paths therethrough to dissipate heat generated therein.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: August 12, 2014
    Assignee: General Electric Company
    Inventors: Kaustubh Ravindra Nagarkar, Christopher Fred Keimel
  • Patent number: 8779886
    Abstract: A device, such as a switch structure, is provided. The switch structure can include a contact and a conductive element each respectively disposed on a substrate. The conductive element can be composed substantially of metallic material, and can be configured to be deformable between a first position, in which the conductive element is separated from the contact by a separation distance, and a second position, in which the conductive element contacts the contact and stores mechanical energy. The conductive element can be further configured such that, subsequent to being deformed into the second position at a temperature between about room temperature and about half of a melting temperature of the metallic material for a cumulative time of at least 107 seconds, the separation distance in the absence of external forces varies by less than 20 percent over the cumulative time. Associated methods are also provided.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: July 15, 2014
    Assignee: General Electric Company
    Inventors: Marco Francesco Aimi, Shubhra Bansal, Christopher Fred Keimel, Kuna Venkat Satya Rama Kishore, Sairam Sundaram, Parag Thakre
  • Publication number: 20140190831
    Abstract: A method of actuating a valve, comprises operatively coupling the valve with an electroosmotic pump; flowing a fluid through the electroosmotic pump; and generating a fluidic pressure of at least 0.75 PSI to actuate the valve, wherein the electroosmotic pump comprises one or more thin, porous, positive electroosmotic membranes and one or more thin porous, negative electroosmotic membranes; a plurality of electrodes comprising cathodes and anodes, and a power source; wherein each of the positive and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on the other side of the membrane and wherein at least one of the cathodes or anodes is disposed between a positive and a negative electroosmotic membrane.
    Type: Application
    Filed: December 7, 2013
    Publication date: July 10, 2014
    Applicant: General Electric Company
    Inventors: Christopher Michael Puleo, Christopher Fred Keimel, Craig Patrick Galligan
  • Publication number: 20140170811
    Abstract: A method of fabricating a microelectronic device structure including increased thermal dissipation capabilities. The structure including a three-dimensional (3D) integrated chip assembly that is flip chip bonded to a substrate. The chip assembly including a device substrate including an active device disposed thereon. A cap layer is physically bonded to the device substrate to at least partially define a hermetic seal about the active device. The microelectronic device structure provides a plurality of heat dissipation paths therethrough to dissipate heat generated therein.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 19, 2014
    Applicant: General Electric Company
    Inventors: Kaustubh Ravindra Nagarkar, Christopher Fred Keimel
  • Patent number: 8698258
    Abstract: A microelectronic device structure including increased thermal dissipation capabilities. The structure including a three-dimensional (3D) integrated chip assembly that is flip chip bonded to a substrate. The chip assembly including a device substrate including an active device disposed thereon. A cap layer is physically bonded to the device substrate to at least partially define a hermetic seal about the active device. The microelectronic device structure provides a plurality of heat dissipation paths therethrough to dissipate heat generated therein.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: April 15, 2014
    Assignee: General Electric Company
    Inventors: Kaustubh Ravindra Nagarkar, Christopher Fred Keimel
  • Patent number: 8659326
    Abstract: A switching apparatus, as may be configured to actuate stacked MEMS switches, may include a switching circuitry (34) including a MEMS switch (36) having a beam (16) made up of a first movable actuator (17) and a second movable actuator (19) electrically connected by a common connector (20) and arranged to selectively establish an electrical current path through the first and second movable actuators in response to a gate control signal applied to the gates of the switch to actuate the movable actuators. The apparatus may further include a gating circuitry (32) to generate the gate control signal applied to gates of the switch. The gating circuitry may include a driver channel (40) electrically coupled to the common connector and may be adapted to electrically float with respect to a varying beam voltage, and may be electrically referenced between the varying beam voltage and a local electrical ground of the gating circuitry.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: February 25, 2014
    Assignee: General Electric Company
    Inventors: Glenn Claydon, Christopher Fred Keimel, John Norton Park, Bo Li
  • Patent number: 8638093
    Abstract: A micro-electromechanical system (MEMS) device that in one embodiment includes at least two MEMS switches coupled to each other in a back-to-back configuration. The first and second suspended elements corresponding to first and second MEMS switches are electrically coupled. Further, first and second contacts corresponding to the first and second MEMS switches are configured such that a differential voltage between the second suspended element and the second contact is approximately equal to a differential voltage between the first suspended element and the first contact. The MEMS device includes at least one actuator coupled to one or more of the first and second suspended elements to actuate one or more of the first and the second suspended elements. In one example, the MEMS device includes one or more passive elements coupled to one or more of the first and second MEMS switches.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: January 28, 2014
    Assignee: General Electric Company
    Inventors: Marco Francesco Aimi, Joseph Alfred Iannotti, Christopher Fred Keimel, Steven YueHin Go